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    2005 Chevrolet Truck Equinox AWD 3.4L SFI 6cyl

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    1720 S RIDGEWOOD A
    (386) 427-1210

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    Avalanche, Sierra, Silverado, C&K Series, 1999-2005

    Shock Absorbers

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    Removal & Installation




    WARNING
    Original equipment shock absorbers serve additionally as suspension drop cutoffs. Replacement shock absorbers must have a built in suspension cutoff feature and must not be longer than original shocks when they are fully extended or serious vehicle or component damage could result.

    1. The vehicle's weight should rest on correctly placed safety stands located under the frame. Chock the front wheels to prevent vehicle movement.
    2.  
    3. Support the rear axle with a floor jack.
    4.  
    5. If the vehicle is equipped with air lift type shocks, bleed the air from the lines and disconnect the line from the shock absorber.
    6.  
    7. Remove or disconnect the following:

      Shock absorber at the top by removing the 2 mounting bolts/nuts from the frame bracket
       
      Nut, washers and bolt from the bottom mount
       
      Shock
       

    8.  

    To install:

    1. Install or connect the following:

      Shock
       
      Upper mounting nuts/bolts. Torque the nuts/bolts to 20 ft lbs. (25 Nm).
       
      Lower mounting bolt/nuts. Torque the nuts/bolts to 60 ft lbs. (80 Nm).
       

    2.  
    3. Check that no parts such as exhaust components bind on the shock absorbers.
    4.  

    1. Raise and support the vehicle.
    2.  
    3. Remove or disconnect the following:

      Electrical connector, if equipped with selectable ride
       
      Upper shock absorber nut and bolt
       
      Lower shock absorber nut and bolt
       
      Shock absorber
       

    4.  

    To install:

    1. Installation is the reverse of removal. Tighten the nuts to 70 ft. lbs. (95 Nm).
    2.  
    3. Connect the electrical connector if equipped with Selectable Ride. Remove the safety stands. Lower the vehicle.
    4.  


    WARNING
    Original equipment shock absorbers serve additionally as suspension drop cutoffs. Replacement shock absorbers must have a built in suspension cutoff feature and must not be longer than original shocks when they are fully extended or serious vehicle or component damage could result.

    1. Before servicing the vehicle, refer to the Precautions section.
    2.  
    3. The vehicle's weight should rest on correctly placed safety stands located under the frame. Chock the front wheels to prevent vehicle movement.
    4.  
    5. Support the rear axle with a floor jack.
    6.  
    7. If the vehicle is equipped with air lift type shocks, bleed the air from the lines and disconnect the line from the shock absorber.
    8.  
    9. Remove or disconnect the following:

      Shock absorber at the top by removing the 2 mounting bolts/nuts from the frame bracket
       
      Nut, washers and bolt from the bottom mount
       
      Shock
       

    10.  

    To install:

    1. Install or connect the following:

      Shock
       
      Upper mounting nuts/bolts. Torque the nuts/bolts to 20 ft lbs. (25 Nm).
       
      Lower mounting bolt/nuts. Torque the nuts/bolts to 60 ft lbs. (80 Nm).
       

    2.  
    3. Check that no parts such as exhaust components bind on the shock absorbers.
    4.  


    WARNING
    Original equipment shock absorbers serve additionally as suspension drop cutoffs. Replacement shock absorbers must have a built in suspension cutoff feature and must not be longer than original shocks when they are fully extended or serious vehicle or component damage could result.

    1. The vehicle's weight should rest on correctly placed safety stands located under the frame. Chock the front wheels to prevent vehicle movement.
    2.  
    3. Support the rear axle with a floor jack.
    4.  
    5. If the vehicle is equipped with air lift type shocks, bleed the air from the lines and disconnect the line from the shock absorber.
    6.  
    7. Remove or disconnect the following:

      Shock absorber at the top by removing the 2 mounting bolts/nuts from the frame bracket
       
      Nut, washers and bolt from the bottom mount
       
      Shock
       

    8.  

    To install:

    1. Install or connect the following:

      Shock
       
      Upper mounting nuts/bolts. Torque the nuts/bolts to 20 ft lbs. (25 Nm).
       
      Lower mounting bolt/nuts. Torque the nuts/bolts to 60 ft lbs. (80 Nm).
       

    2.  
    3. Check that no parts such as exhaust components bind on the shock absorbers.
    4.  

    1. Raise and support the vehicle.
    2.  
    3. Disconnect the electrical connector if equipped with Selectable Ride.
    4.  
    5. Remove the upper shock absorber nut and the bolt.
    6.  
    7. Remove the lower shock absorber nut and the bolt.
    8.  
    9. Remove the shock absorber.
    10.  
    11. Installation is the reverse of removal. Tighten the nuts to 95 Nm (70 ft. lbs.).
    12.  
    13. Connect the electrical connector if equipped with Selectable Ride. Remove the safety stands. Lower the vehicle.
    14.  

    1. Raise and support the vehicle.
    2.  
    3. Remove or disconnect the following:

      Electrical connector, if equipped with selectable ride
       
      Upper shock absorber nut and bolt
       
      Lower shock absorber nut and bolt
       
      Shock absorber

      Click image to see an enlarged view

      Fig. Exploded view of the rear shock absorber mounting

       

    4.  

    To install:

    1. Installation is the reverse of removal. Tighten the nuts to 70 ft. lbs. (95 Nm).
    2.  
    3. Connect the electrical connector if equipped with Selectable Ride. Remove the safety stands. Lower the vehicle.
    4.  

    1. Raise and support the vehicle.
    2.  
    3. Remove or disconnect the following:

      Electrical connector, if equipped with selectable ride
       
      Upper shock absorber nut and bolt
       
      Lower shock absorber nut and bolt
       
      Shock absorber

      Click image to see an enlarged view

      Fig. Exploded view of the rear shock absorber mounting

       

    4.  

    To install:

    1. Installation is the reverse of removal. Tighten the nuts to 70 ft. lbs. (95 Nm).
    2.  
    3. Connect the electrical connector if equipped with Selectable Ride. Remove the safety stands. Lower the vehicle.
    4.  

    Testing & Inspection



    The purpose of the shock absorber is simply to limit the motion of the spring during compression and rebound cycles. If the vehicle is not equipped with these motion dampers, the up and down motion would multiply until the vehicle was alternately trying to leap off the ground and to pound itself into the pavement.

    Contrary to popular rumor, the shocks do not affect the ride height of the vehicle. This is controlled by other suspension components such as springs and tires. Worn shock absorbers can affect handling; if the front of the vehicle is rising or falling excessively, the -footprint- of the tires changes on the pavement and steering is affected.

    The simplest test of the shock absorber is simply push down on one corner of the unladen vehicle and release it. Observe the motion of the body as it is released. In most cases, it will come up beyond it original rest position, dip back below it and settle quickly to rest. This shows that the damper is controlling the spring action. Any tendency to excessive pitch (up-and-down) motion or failure to return to rest within 2-3 cycles is a sign of poor function within the shock absorber. Oil-filled shocks may have a light film of oil around the seal, resulting from normal breathing and air exchange. This should NOT be taken as a sign of failure, but any sign of thick or running oil definitely indicates failure. Gas filled shocks may also show some film at the shaft; if the gas has leaked out, the shock will have almost no resistance to motion.

    Click image to see an enlarged view

    Fig. When fluid is seeping out of the shock absorber, it-s time to replace the shock

    While each shock absorber can be replaced individually, it is recommended that they be changed as a pair (both front or both rear) to maintain equal response on both sides of the vehicle. Chances are quite good that if one has failed, its mate is weak also.

    The purpose of the shock absorber is simply to limit the motion of the spring during compression and rebound cycles. If the vehicle is not equipped with these motion dampers, the up and down motion would multiply until the vehicle was alternately trying to leap off the ground and to pound itself into the pavement.

    Contrary to popular rumor, the shocks do not affect the ride height of the vehicle. This is controlled by other suspension components such as springs and tires. Worn shock absorbers can affect handling; if the front of the vehicle is rising or falling excessively, the -footprint- of the tires changes on the pavement and steering is affected.

    The simplest test of the shock absorber is simply push down on one corner of the unladen vehicle and release it. Observe the motion of the body as it is released. In most cases, it will come up beyond it original rest position, dip back below it and settle quickly to rest. This shows that the damper is controlling the spring action. Any tendency to excessive pitch (up-and-down) motion or failure to return to rest within 2-3 cycles is a sign of poor function within the shock absorber. Oil-filled shocks may have a light film of oil around the seal, resulting from normal breathing and air exchange. This should NOT be taken as a sign of failure, but any sign of thick or running oil definitely indicates failure. Gas filled shocks may also show some film at the shaft; if the gas has leaked out, the shock will have almost no resistance to motion.

    Click image to see an enlarged view

    Fig. When fluid is seeping out of the shock absorber, it-s time to replace the shock

    While each shock absorber can be replaced individually, it is recommended that they be changed as a pair (both front or both rear) to maintain equal response on both sides of the vehicle. Chances are quite good that if one has failed, its mate is weak also.

     
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